Table 2: Chemical soil characteristics of the soils of the study area.

Morphological unitSoil typeHorizonpHOCCaMgKPCECBS
%Cmol kg−1mg kg−1cmol kg−1%

Upper pedimentHaplic Lixisols
(chromic)
Ap6.00.82.80.90.33.06.762.9
Bt*4.90.23.71.60.20.011.150.4
2Btw4.80.12.70.80.30.08.050.3
Haplic Lixisols
(colluvic)
Ap5.31.03.10.50.22.06.460.7
2Btw*4.80.55.31.40.10.011.957.9
2Bwo4.70.23.71.00.40.010.150.7
Haplic LixisolsAp5.60.74.70.80.38.09.859.1
Bt*5.20.75.61.20.14.012.556.0

Lower pedimentHaplic Acrisols
(arenic)
Ap5.71.01.30.20.12.05.362.3
Bo4.40.41.70.40.11.04.138.6
Bto*4.20.51.40.60.11.08.226.6
2Bo4.70.14.01.60.10.07.927.2
Haplic Acrisols Ap5.91.22.80.90.23.012.961.2
Bto*4.10.63.41.30.41.013.231.6
Bwo4.70.42.90.30.41.012.544.3
Haplic Acrisols
(arenic)
Ap5.60.71.20.50.21.07.446.3
Bl5.40.31.91.00.11.02.965.8
Bt*4.90.32.10.50.40.08.340.0
2Bt4.70.14.70.60.30.08.037.3

River valleyGleyic Fluvisols
(dystric, siltic)
Ap4.01.00.90.40.02.08.819.3
Bsg*4.20.41.70.40.12.011.126.6
Gleyic Fluvisols
(dystric, siltic)
Ap5.10.42.31.00.11.08.440.5
Bog*4.60.72.20.70.02.08.535.5
Gleyic Fluvisols
(arenic)
Ap4.00.61.50.20.12.06.826.9
Bg4.30.31.60.30.15.05.536.0
2Bsg*4.80.22.50.40.10.06.150.6

Lower plainPisoplinthic Acrisols
(chromic)
Ap4.71.22.90.70.12.09.838.5
Bto*4.30.52.70.70.11.011.032.1
2Bwo4.20.41.60.40.11.09.621.8
Gleyic Acrisols
(siltic)
Ap4.20.81.90.60.04.09.626.9
Bto*4.30.71.80.70.03.08.031.6
Pisoplinthic Acrisols
(chromic)
Ahc5.01.13.70.90.11.012.538.0
Bto*4.20.42.50.40.00.09.730.5
2Bw4.00.31.90.40.00.010.322.7

Upper plainHaplic Plinthosols
(dystric)
Ap4.71.22.40.60.13.09.134.1
Bv*4.20.81.30.20.01.08.517.9
Haplic Plinthosols
(hyperdystric, clayic)
Ahc4.21.32.50.70.21.013.526.2
Btv*4.00.40.90.10.05.012.06.3
Bov4.00.40.40.00.20.012.15.2

Diagnostic horizons.